Loose-leaf binder



April 13,- 1948. s. SEGAL LOOSE LEAF BINDER Filed Aug..2l, 1944 4 Sheets-Sheet 1 fiend-07 April 1948- s. SEGAL 2,439,675

LOOSE LEAF BINDER Filed Aug. 21, 1944 4 Sheets-Sheet 2 April 13, 1948. 1 Q E Q 2,439,675

LOOSE LEAF BINDER Filed Aug. 21, 1944 4 Sheets-Sheet a YIH ? cal April 13, 1948.

s. SEGAL.

LOOSE LEAF BINDER I Filed Aug. 21, 1944 4 Sheets-Sheet 41 Patented Apr. 13; 1948 'Loosii-LEAFm nEn I Samuel Sosa l; Hcwdtork, Nhhiassiznonta s n-J ne .qomrenrnfl i 11L, corpora tion of..Massachuset s I j Application flugiist 21, 1944", serial- Nor-550gii35 2 claims. (01. mil-24) This invention; relates: to a loose leaf binder of thetynewherein aplurality of. sectional rings are adapted. tolretain a plurality of apertured sheets. It refers particularly to a simple and efficient means for opening, olosingand interlocking the sheet retaining. rings. I

It is an object of this invention to provide a loose leaf ring binder with a single booster adapted to" open, close andint'erlock the rings. Other objects of this invention will become apparent upon reading the following description, taken in conjunction with the accompanying drawings, in which: 4

Figure 1 is a fragmentary perspective: view of ,orve embodiment of a loose leaf binderemhodyingmy-invention;

Figure 2 is a bottom plan view of the sheet retaining mechanism of Figure 1;

Figure 3 is a longitudinal sectional view taken along the line IIIIII of Figure 1;

Figure 4 is a view similar to Figure 3 showing the booster in the position it occupies when the sheet retaining rings are open;

Figure 5 is a cross-sectional view taken along the line V-V of Figure 3;

Figure 6 is a cross-sectional view taken along the line VIVI of Figure 4;

Figure 7 is a view similar to Figure 3 showing a modified form of booster;

Figure 8 is a cross-sectional view taken along the line V11I-VIH of Figure 7;

Figure 9 is a detail perspective view of the booster shown in Figures 7 and 8;

Figure 10- is a perspective view showing the sheet retaining metal secured to the inside of a wallet;

Figure 11 is a view similar to Figure 3 showing another modified embodiment of the booster mechanism, and

Figure 12 is a cross-sectional view taken along the line XIL-XII of Figure 11.

In the drawings the reference numeral 2 indicates a back member having a pair of cover members 3 hinged thereto in any suitable manner. The sheet retaining mechanism 4, which constitutes the subject matter of my invention, is secured to the back member by means of a plurality of rivets or eyelets 5. This sheet retaining mechanism may be of a size used in student note books, or, as indicated in Figure 10 of the drawings, may be made in miniature so that it may be secured to the inner fold of a wallet 6 or similar article.

In each embodiment disclosed the sheet retaining mechanism comprises a cover plate I, which I $2 is provided with: a. plurality of pairs. of: trans versely" alignedrnotohes it. A pair. of 'rockable iramemembersit islpcsition'edrin. the cover :memw her "I; The rockable frame; members 1 t]; are each providcdrwithea ringssectiondili at eachendi The ring section in. on one: or the .rockable frame members mates with thelring'lsectionoi the other rockable frame member so that the sections 1 may be closed toionn a pair; or? sheet retaining. rings. lithe ring sections Inzproject through. the notches 8.. The I rockablenf-name: members. 8; are provided with toggle joints lzhtnwfecilitate the opening: and closing movement ofrthering sections.

In. the embodimentaillustrated. in. Figures. 1; to

6 of the drawings, thewbooster I2 compriseszaliflat strip. of metal; having; one. endifl I3: projecting through one endiofrthevs'eover-plate andbentium wardly to provide a finger piece to facilitate manipulation of the booster. The strip I2 is provided with a longitudinal slot I4 to permit passage of the rivet 5 and to permit longitudinal movement of the booster without interference from the rivet. The strip I2 is split longitudinally from its free end to provide a finger I5 positioned between the toggle connection II and the cover plate, and two fingers I6 which fit between the bottom surface of the ring sections Ill and the back member 2. The fingers I5 and I5 are curved as indicated in Figures 3 and 4. When the booster mechanism is in the position indicated in Figure 3, the finger I5 presses down against the toggle joint I I so as to interlock the rings, and prevents opening of the rings by preventing upward movement of the toggle joints. As the finger piece I3 is pulled outwardly of the cover plate I the upward sweep of the finger I5 releases the interlocking pressure on the toggle joint I I and the upwardly curved portion of the fingers I6 lift the portion of the ring sections Ii! adjacent the toggle connection, as indicated at Figure 6, so as to open the ring sections. The slot I4 is of such length that, although it permits the booster to be moved longitudinally far enough to open or close the 7 ring sections, it will engage the rivet or eyelet 5 at either end of its movement so as to prevent disengagement of the fingers I5 and Hi from the toggle joint II.

The embodiment illustrated in Figures 7, 8 and 9 is similar to that previously described, except that the central finger I5 is stamped out of the body portion of the flat strip I2. In this embodiment the space from which the finger I5 is bent provides sufiicient clearance for the rivet 5. The rivet 5 engages the ends of this space, as in the embodiment previously described, to

prevent disengagement of the fingers l5 and I6 from the toggle connection. The fingers l8 are extensions projecting from the outer end of the strip I2.

In the embodiment illustrated in Figures 11 and 12 of the drawings, the fiat strip I! does not project through the end of the cover plate but is provided with a -transverse slot 11 through which a separate finger piece i8 is projected. The cover plate 1' is provided with a transverse slot l9 to permit the finger piece l8 to project therethrough. The finger piece I8 is provided with a foot portion 20 wide enough to prevent the finger piece from beingvremoved through the slots l1 and I9. The sheet retaining mechanism is riveted to the back member 2 after the finger piece l8 has been projected through the slots I I and I9.

Although I have described several embodiments of my invention in detail, it will be understood that the description thereof is intended tobe illustrative, rather than restrictive, as many details may be modified or changed without departing from the spirit or scope of my invention. Accordingly, I do not intend to be bound to the exact construction described, except as limited by'the appended claims.

I claim:

1. In a loose leaf binder, a cover member, a pair of rockable frame members positioned in said cover member, said rockable frame members havinga-toggle connection at each end,

a slidablemember having curved fingers engaging said frame members, said cover member and said slidable member eachbeing provided with a transverse slot, and a lever passing through said slots, whereby said slidable member may be moved longitudinally relative to said cover member, said curved fingers moving said rockable frame members vertically at said toggle connections when said slidable member is moved longitudinally relative to said cover member.

2. In a loose leaf binder, a pair of rockable frame members having a toggle connection at each end, .said frame members terminating in ring sections, and a slidable member having one finger engaging both said frame members on one surface of one of said toggle connections and a pair of fingers, each engaging the opposite surface of one of said ring sections adjacent said toggle connection, said first mentioned finger being shaped to move said ring sections to closed position when said slidable member is slid towards said frame members and to hold said ring sections interlocked when said slidable member is in its innermost position, and said second mentioned fingers being shaped to open said ring sections when said slidable member is moved longitudinally away from said frame members.

' SAMUEL SEGAL.

REFERENCES CITED The following references are of record in the file of .this patent:

' UNITED STATES PATENTS Koeling Mayl3, 1941 

